San Diego County, San Diego Rat Control Situation:
Hi David, Is a UV blacklight still useful, exterior-wise, if it rains after the rodents leave their urine stains? I am in the process of performing exterior maintenance to better exclude my roof rats. 1) I have a 25 year old cedar shake roof in San Diego California with openings under each shake along the rake edge of the roof at the gable ends of my house. There's no drip edge, i.e. under the shakes I have roofing paper (now somewhat curled) that runs more or less up to and rests right atop the fascia board. Because I have skip sheathing, and since the cross section of a shake is a wedge that is up to one inch at the upper, thick end, this appears to create many huge entry points along the rake edges even though the sheathing is rabbeted into the fascia board. As a result, I'm thinking of getting a UV blacklight to use outside the house to sleuth for urine stains along the upper edge of the gable end shakes and fascia boards. My question is, how easily does the winter rain wash away the urine, rendering this a pointless exercise? 2) I noticed a new product called "rat-out gel" and was thinking of applying it along the rake edges mentioned above. Or, maybe I should just buy many rolls of X-Clude and use that instead. Or maybe both. Any comment? Thanks very much for your website, Doug
My response: First off, I do not have experience using UV lights to detect rat urine. But I do suspect that rain will severely limit the effectiveness of this approach. I have never heard of Rat-Out Gel or XClude, but I typically stick to physical barriers rather than repellent type devices. If your roof makes this impossible, you might have a tough time keeping the rats out.
San Diego Rat Control Tip of The Week
Best Ways To Keep Rats Out Of Your Garden
Controlling rats is the initial step in the right path, but it is not a long-term solution. Spying on rats in your home or property will increase your awareness, and there will be a need for a lot of effort focused on getting rid of them. This can reduce the population to a point, but if efforts are sustained for months and months, it will create a cyclical pattern. Once people or homeowners see fewer rats, they reduce rat-proofing efforts, then the population grows, and the problem starts again.
Tips For Handling Rats In The Garden:- Don't leave uneaten pet food outside. Keep pet food stored in plastic containers.
- Store food indoors properly, in containers, if possible. Don't leave food unattended on counters.
- The dense brush that provides shelter should be removed.
- Keep the birdseed off the ground with the help of baffles. Bird feeders should be hung away from eaves or fences that provide easy access for rats.
- Make use of a closed, contained, and secured compost process. At the very least, make sure the food scraps are out of open compost piles.
- Clean up the fruit that falls to the ground.
- Repair gaps greater than 1/4 inch around doors, windows, crawl spaces, screens, attic vents, and anywhere else holes may provide access to inside your home.
- Keep garbage in a secured plastic container with a lid.